Waste materials can be classified in different categories based on their re-usable functionality, that includes, (a) recyclable waste like paper, metal, plastic, glass, cardboard are used to recycle and reuse; (b) organic waste are used to make compost for agriculture; and c) non-disposable waste are not reusable and need to be buried as these are harmful for the environment. To ensure the better use of these resources, to promote the cost-effective production and cultivation, and finally to make the environment green, it is utmost important to categories and manage the wastes in to different category.
Waste sorting contributes to recycling and saving energy. The Aluminum Association estimates that the energy saved in recycling a single aluminum can, could be used to power a television for 3 hours. Creating new plastic from raw materials requires ten times more energy than the energy needed for recycling plastic. Environmental Protection Agency estimates that producing a paper product from recycled paper requires only 60 percent of the energy required to create one from fresh wood pulp. Energy Administration Information reports that recycling a ton of paper can save 17 trees. However, due to lack of any efficient way of sorting the waste, most of the recyclable products are wasted. This turns out to be very harmful for the environment in the long run.
